S
M
T
W
T
F
S
26
94°
75°
27
94°
78°
28
94°
79°
29
94°
78°
30
95°
79°
31
94°
78°
1
94°
80°
2
86°
75°
3
91°
70°
4
95°
70°
5
93°
73°
6
93°
73°
7
91°
72°
8
92°
72°
9
92°
72°
10
92°
74°
11
94°
75°
12
94°
75°
13
95°
78°
14
96°
74°
15
96°
75°
16
96°
77°
17
97°
76°
18
96°
78°
19
96°
77°
20
95°
78°
21
97°
72°
22
98°
75°
23
99°
77°
24
92°
76°
25
91°
77°
26
92°
76°
27
90°
74°
28
88°
75°
29
90°
74°
30
89°
74°
31
91°
73°
1
90°
72°
2
89°
72°
3
90°
72°
4
88°
75°
5
89°
75°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Slidell
Slidell's August 2026 forecast shows daily high temperatures ranging from 88° to 99°, with overnight lows between 72° and 77°. The average high for August is 91° with an average low of 74°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Slidell. See also: September | October | November.
